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MySQL JDBC Type 4 driver
/*
Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
, like most MySQL Connectors.
There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
this software, see the FOSS License Exception
.
This program is free software; you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation; version 2
of the License.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this
program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth
Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.jdbc.profiler;
import java.util.Date;
import com.mysql.jdbc.StringUtils;
public class ProfilerEvent {
/**
* A Profiler warning event
*/
public static final byte TYPE_WARN = 0;
/**
* Profiler creating object type event
*/
public static final byte TYPE_OBJECT_CREATION = 1;
/**
* Profiler event for prepared statements being prepared
*/
public static final byte TYPE_PREPARE = 2;
/**
* Profiler event for a query being executed
*/
public static final byte TYPE_QUERY = 3;
/**
* Profiler event for prepared statements being executed
*/
public static final byte TYPE_EXECUTE = 4;
/**
* Profiler event for result sets being retrieved
*/
public static final byte TYPE_FETCH = 5;
/**
* Profiler event for slow query
*/
public static final byte TYPE_SLOW_QUERY = 6;
/**
* Type of event
*/
protected byte eventType;
/**
* Associated connection (-1 for none)
*/
protected long connectionId;
/**
* Associated statement (-1 for none)
*/
protected int statementId;
/**
* Associated result set (-1 for none)
*/
protected int resultSetId;
/**
* When was the event created?
*/
protected long eventCreationTime;
/**
* How long did the event last?
*/
protected long eventDuration;
/**
* What units was the duration measured in?
*/
protected String durationUnits;
/**
* The hostname the event occurred on (as an index into a dictionary, used
* by 'remote' profilers for efficiency)?
*/
protected int hostNameIndex;
/**
* The hostname the event occurred on
*/
protected String hostName;
/**
* The catalog the event occurred on (as an index into a dictionary, used by
* 'remote' profilers for efficiency)?
*/
protected int catalogIndex;
/**
* The catalog the event occurred on
*/
protected String catalog;
/**
* Where was the event created (as an index into a dictionary, used by
* 'remote' profilers for efficiency)?
*/
protected int eventCreationPointIndex;
/**
* Where was the event created (as a string description of the
* eventCreationPoint)?
*/
protected String eventCreationPointDesc;
/**
* Optional event message
*/
protected String message;
/**
* Creates a new profiler event
*
* @param eventType
* the event type (from the constants TYPE_????)
* @param hostName
* the hostname where the event occurs
* @param catalog
* the catalog in use
* @param connectionId
* the connection id (-1 if N/A)
* @param statementId
* the statement id (-1 if N/A)
* @param resultSetId
* the result set id (-1 if N/A)
* @param eventCreationTime
* when was the event created?
* @param eventDurationMillis
* how long did the event last?
* @param eventCreationPointDesc
* event creation point as a string
* @param eventCreationPoint
* event creation point as a Throwable
* @param message
* optional message
*/
public ProfilerEvent(byte eventType, String hostName, String catalog, long connectionId, int statementId, int resultSetId, long eventCreationTime,
long eventDuration, String durationUnits, String eventCreationPointDesc, String eventCreationPoint, String message) {
this.eventType = eventType;
this.connectionId = connectionId;
this.statementId = statementId;
this.resultSetId = resultSetId;
this.eventCreationTime = eventCreationTime;
this.eventDuration = eventDuration;
this.durationUnits = durationUnits;
this.eventCreationPointDesc = eventCreationPointDesc;
this.message = message;
}
/**
* Returns the description of when this event was created.
*
* @return a description of when this event was created.
*/
public String getEventCreationPointAsString() {
return this.eventCreationPointDesc;
}
/**
* Returns a representation of this event as a String.
*
* @return a String representation of this event.
*/
@Override
public String toString() {
StringBuilder buf = new StringBuilder(32);
switch (this.eventType) {
case TYPE_EXECUTE:
buf.append("EXECUTE");
break;
case TYPE_FETCH:
buf.append("FETCH");
break;
case TYPE_OBJECT_CREATION:
buf.append("CONSTRUCT");
break;
case TYPE_PREPARE:
buf.append("PREPARE");
break;
case TYPE_QUERY:
buf.append("QUERY");
break;
case TYPE_WARN:
buf.append("WARN");
break;
case TYPE_SLOW_QUERY:
buf.append("SLOW QUERY");
break;
default:
buf.append("UNKNOWN");
}
buf.append(" created: ");
buf.append(new Date(this.eventCreationTime));
buf.append(" duration: ");
buf.append(this.eventDuration);
buf.append(" connection: ");
buf.append(this.connectionId);
buf.append(" statement: ");
buf.append(this.statementId);
buf.append(" resultset: ");
buf.append(this.resultSetId);
if (this.message != null) {
buf.append(" message: ");
buf.append(this.message);
}
if (this.eventCreationPointDesc != null) {
buf.append("\n\nEvent Created at:\n");
buf.append(this.eventCreationPointDesc);
}
return buf.toString();
}
/**
* Unpacks a binary representation of this event.
*
* @param buf
* the binary representation of this event
* @return the unpacked Event
* @throws Exception
* if an error occurs while unpacking the event
*/
public static ProfilerEvent unpack(byte[] buf) throws Exception {
int pos = 0;
byte eventType = buf[pos++];
long connectionId = readInt(buf, pos);
pos += 8;
int statementId = readInt(buf, pos);
pos += 4;
int resultSetId = readInt(buf, pos);
pos += 4;
long eventCreationTime = readLong(buf, pos);
pos += 8;
long eventDuration = readLong(buf, pos);
pos += 4;
byte[] eventDurationUnits = readBytes(buf, pos);
pos += 4;
if (eventDurationUnits != null) {
pos += eventDurationUnits.length;
}
readInt(buf, pos);
pos += 4;
byte[] eventCreationAsBytes = readBytes(buf, pos);
pos += 4;
if (eventCreationAsBytes != null) {
pos += eventCreationAsBytes.length;
}
byte[] message = readBytes(buf, pos);
pos += 4;
if (message != null) {
pos += message.length;
}
return new ProfilerEvent(eventType, "", "", connectionId, statementId, resultSetId, eventCreationTime, eventDuration,
StringUtils.toString(eventDurationUnits, "ISO8859_1"), StringUtils.toString(eventCreationAsBytes, "ISO8859_1"), null,
StringUtils.toString(message, "ISO8859_1"));
}
/**
* Creates a binary representation of this event.
*
* @return a binary representation of this event
* @throws Exception
* if an error occurs while packing this event.
*/
public byte[] pack() throws Exception {
int len = 1 + 4 + 4 + 4 + 8 + 4 + 4;
byte[] eventCreationAsBytes = null;
getEventCreationPointAsString();
if (this.eventCreationPointDesc != null) {
eventCreationAsBytes = StringUtils.getBytes(this.eventCreationPointDesc, "ISO8859_1");
len += (4 + eventCreationAsBytes.length);
} else {
len += 4;
}
byte[] messageAsBytes = null;
if (this.message != null) {
messageAsBytes = StringUtils.getBytes(this.message, "ISO8859_1");
len += (4 + messageAsBytes.length);
} else {
len += 4;
}
byte[] durationUnitsAsBytes = null;
if (this.durationUnits != null) {
durationUnitsAsBytes = StringUtils.getBytes(this.durationUnits, "ISO8859_1");
len += (4 + durationUnitsAsBytes.length);
} else {
len += 4;
durationUnitsAsBytes = StringUtils.getBytes("", "ISO8859_1");
}
byte[] buf = new byte[len];
int pos = 0;
buf[pos++] = this.eventType;
pos = writeLong(this.connectionId, buf, pos);
pos = writeInt(this.statementId, buf, pos);
pos = writeInt(this.resultSetId, buf, pos);
pos = writeLong(this.eventCreationTime, buf, pos);
pos = writeLong(this.eventDuration, buf, pos);
pos = writeBytes(durationUnitsAsBytes, buf, pos);
pos = writeInt(this.eventCreationPointIndex, buf, pos);
if (eventCreationAsBytes != null) {
pos = writeBytes(eventCreationAsBytes, buf, pos);
} else {
pos = writeInt(0, buf, pos);
}
if (messageAsBytes != null) {
pos = writeBytes(messageAsBytes, buf, pos);
} else {
pos = writeInt(0, buf, pos);
}
return buf;
}
private static int writeInt(int i, byte[] buf, int pos) {
buf[pos++] = (byte) (i & 0xff);
buf[pos++] = (byte) (i >>> 8);
buf[pos++] = (byte) (i >>> 16);
buf[pos++] = (byte) (i >>> 24);
return pos;
}
private static int writeLong(long l, byte[] buf, int pos) {
buf[pos++] = (byte) (l & 0xff);
buf[pos++] = (byte) (l >>> 8);
buf[pos++] = (byte) (l >>> 16);
buf[pos++] = (byte) (l >>> 24);
buf[pos++] = (byte) (l >>> 32);
buf[pos++] = (byte) (l >>> 40);
buf[pos++] = (byte) (l >>> 48);
buf[pos++] = (byte) (l >>> 56);
return pos;
}
private static int writeBytes(byte[] msg, byte[] buf, int pos) {
pos = writeInt(msg.length, buf, pos);
System.arraycopy(msg, 0, buf, pos, msg.length);
return pos + msg.length;
}
private static int readInt(byte[] buf, int pos) {
return (buf[pos++] & 0xff) | ((buf[pos++] & 0xff) << 8) | ((buf[pos++] & 0xff) << 16) | ((buf[pos++] & 0xff) << 24);
}
private static long readLong(byte[] buf, int pos) {
return (buf[pos++] & 0xff) | ((long) (buf[pos++] & 0xff) << 8) | ((long) (buf[pos++] & 0xff) << 16) | ((long) (buf[pos++] & 0xff) << 24)
| ((long) (buf[pos++] & 0xff) << 32) | ((long) (buf[pos++] & 0xff) << 40) | ((long) (buf[pos++] & 0xff) << 48)
| ((long) (buf[pos++] & 0xff) << 56);
}
private static byte[] readBytes(byte[] buf, int pos) {
int length = readInt(buf, pos);
pos += 4;
byte[] msg = new byte[length];
System.arraycopy(buf, pos, msg, 0, length);
return msg;
}
/**
* Returns the catalog in use
*
* @return the catalog in use
*/
public String getCatalog() {
return this.catalog;
}
/**
* Returns the id of the connection in use when this event was created.
*
* @return the connection in use
*/
public long getConnectionId() {
return this.connectionId;
}
/**
* Returns the time (in System.currentTimeMillis() form) when this event was
* created
*
* @return the time this event was created
*/
public long getEventCreationTime() {
return this.eventCreationTime;
}
/**
* Returns the duration of the event in milliseconds
*
* @return the duration of the event in milliseconds
*/
public long getEventDuration() {
return this.eventDuration;
}
/**
* Returns the units for getEventDuration()
*/
public String getDurationUnits() {
return this.durationUnits;
}
/**
* Returns the event type flag
*
* @return the event type flag
*/
public byte getEventType() {
return this.eventType;
}
/**
* Returns the id of the result set in use when this event was created.
*
* @return the result set in use
*/
public int getResultSetId() {
return this.resultSetId;
}
/**
* Returns the id of the statement in use when this event was created.
*
* @return the statement in use
*/
public int getStatementId() {
return this.statementId;
}
/**
* Returns the optional message for this event
*
* @return the message stored in this event
*/
public String getMessage() {
return this.message;
}
}